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The First Neanderthal Remains from an Open-Air Middle Palaeolithic Site In www.nature.com/scientificreports OPEN The first Neanderthal remains from an open-air Middle Palaeolithic site in the Levant Received: 30 January 2017 Ella Been1,2, Erella Hovers3,4, Ravid Ekshtain3, Ariel Malinski-Buller5, Nuha Agha6, Alon Accepted: 8 May 2017 Barash7, Daniella E. Bar-Yosef Mayer8,9, Stefano Benazzi10,11, Jean-Jacques Hublin11, Lihi Published: xx xx xxxx Levin2, Noam Greenbaum12, Netta Mitki3, Gregorio Oxilia13,10, Naomi Porat 14, Joel Roskin15,16, Michalle Soudack17,18, Reuven Yeshurun19, Ruth Shahack-Gross15, Nadav Nir3, Mareike C. Stahlschmidt20, Yoel Rak2 & Omry Barzilai6 The late Middle Palaeolithic (MP) settlement patterns in the Levant included the repeated use of caves and open landscape sites. The fossil record shows that two types of hominins occupied the region during this period—Neandertals and Homo sapiens. Until recently, diagnostic fossil remains were found only at cave sites. Because the two populations in this region left similar material cultural remains, it was impossible to attribute any open-air site to either species. In this study, we present newly discovered fossil remains from intact archaeological layers of the open-air site ‘Ein Qashish, in northern Israel. The hominin remains represent three individuals: EQH1, a nondiagnostic skull fragment; EQH2, an upper right third molar (RM3); and EQH3, lower limb bones of a young Neandertal male. EQH2 and EQH3 constitute the first diagnostic anatomical remains of Neandertals at an open-air site in the Levant. The optically stimulated luminescence ages suggest that Neandertals repeatedly visited ‘Ein Qashish between 70 and 60 ka. The discovery of Neandertals at open-air sites during the late MP reinforces the view that Neandertals were a resilient population in the Levant shortly before Upper Palaeolithic Homo sapiens populated the region. The Middle Palaeolithic (MP) of the southern Levant is a significant period for the study of human evolution because two types of hominins, Neandertals and Homo sapiens, occupied the region at that time (see, for example, refs 1 and 2). Diagnostic fossil remains of the two species have been found in the Mediterranean woodland region, but until recently, they were discovered only at cave sites (Fig. 1). The absolute chronology of the Levantine MP fossils indicates that H. sapiens existed there between 120 and 90 ka and again from 55 ka on; Neandertals existed in that region between ca. 80 and ca. 55 ka3–16. The genomic evidence suggests gene flow from early H. sapiens to 1Department of Physical Therapy, Faculty of Health Professions, Ono Academic College, Kiryat Ono, 55107, Israel. 2Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel. 3Institute of Archaeology, the Hebrew University of Jerusalem, Jerusalem, 91905, Israel. 4Institute of Human Origins, Arizona State University, P.O. Box 874101, Tempe, AZ, 85287-4101, Israel. 5MONREPOS Archaeological Research Centre and Museum for Human Behavioural Evolution, Schloss Monrepos, D - 56567, Neuwied, Germany. 6Israel Antiquities Authority, P.O. Box 586, Jerusalem, 91004, Israel. 7Faculty of Medicine in the Galilee, Bar Ilan University, Zefat, 13115, Israel. 8Steinhardt Museum of Natural History, Tel Aviv University, Tel Aviv, 69978, Israel. 9Peabody Museum of Archaeology and Ethnology, Harvard University, 11 Divinity Avenue, Cambridge, MA, 02138, USA. 10Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, 48121, Ravenna, Italy. 11Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103, Leipzig, Germany. 12Department of Geography & Environmental Studies, University of Haifa, Haifa, 3498838, Israel. 13Department of Biology, University of Florence, Via del Proconsolo, 12, 50122, Firenze, Italy. 14Luminescence Dating Lab, Geological Survey of Israel, Jerusalem, 95501, Israel. 15Department of Maritime Civilizations, University of Haifa, Haifa, 3498838, Israel. 16School of Sciences, Achva Academic College, Shikmim Mobile Post 79800, Shikmim, Israel. 17Department of Diagnostic Imaging, Chaim Sheba Medical Center, Tel Hashomer, 52621, Israel. 18Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel. 19Zinman Institute of Archaeology, University of Haifa, Haifa, 3498838, Israel. 20School of Archaeology, University College Dublin, Belfield, Dublin 4, Ireland. Correspondence and requests for materials should be addressed to E.B. (email: [email protected]) SCIENTIFIC REPORTS | 7: 2958 | DOI:10.1038/s41598-017-03025-z 1 www.nature.com/scientificreports/ Figure 1. Left: Major Middle Palaeolithic sites (triangles) and modern cities (squares) in the Near East. Right: Location of ‘Ein Qashish and other Middle Palaeolithic sites in northern Israel. The map was generated using ESRI ArcInfo v10.4. the eastern Altai Neandertals ca. 100 ka17 and flow from Neandertals to H. sapiens between ca. 60 and 50 ka18. In the Levant, the archaeological record cannot distinguish between these two MP populations. The lithic variability observed in the Levantine MP is not clearly taxonomy related (ref. 19 for a different view see ref. 20). The two populations left similar material culture remains—in particular, lithic industries that include the Levallois tech- nology. In addition, the populations seem to have had similar settlement and mobility patterns in respect to the use of caves for habitation and burials; at Tabun, these populations used the same cave diachronically12, 13, 21, 22. The discovery of several previously unknown MP open-air sites in the Mediterranean woodland region in the last decade diverted much of the research focus to MP behaviors associated with the open landscape (e.g., ref. 23). In the absence of taxonomically informative fossil remains, it was impossible to attribute these (as well as pre- viously reported) open-air sites to either Neandertals or H. sapiens. Therefore, it was also difficult to determine these species’ settlement patterns and territorial behavior within the Levant. The new discovery of Neandertal remains at the late MP open-air site of ‘Ein Qashish provides a window into the settlement and mobility patterns of the Neandertals of northern Israel. The Site ‘Ein Qashish is located on the south bank of the Qishon stream in the Jezreel Valley, facing the eastern slopes of Mount Carmel, Israel (Fig. 1). Excavations at the site in 2009–2011 exposed remains of a Late Mousterian occu- pation on the Qishon floodplain24–28. In 2013, the site was subjected to an extensive salvage excavation during which an area of ca. 650 m2 was dug to a maximum depth of 4.5 m (ref. 29; SI 1). The stratigraphy consists of six sedimentary layers comprising four occupational horizons (Fig. 2). The 2013 excavation is laterally and stratigraphically contiguous to the original excavation, with a similar depositional context. The sediments are composed mainly of black heavy clays repre- senting the flood plain of the palaeo-Qishon stream and coarse cobbles transported by short, steep, fast-flowing streams off the eastern flanks of Mount Carmel (refs 25 and 26; SI 1). The site sequence was dated through opti- cally stimulated luminescence (OSL), which puts the time range of all the examined archaeological horizons at ca. 70–60 ka (SI 2 Table 1), similar to the range of dates of the stratigraphic sequence of the 2009–2011 excavation, established through the same dating techniques26. The Context of the Hominin Remains. The hominin remains from ‘Ein Qashish represent three individ- uals that were found in three distinct layers (Fig. 2). Specimen EQH1 is a nondiagnostic skull fragment that was discovered in a mechanically dug geological trench prior to the 2013 excavation (ref. 29; SI 1). The stratigraphic position of the fossil corresponds to Layer 1, the lowest in the documented sections in the site’s vicinity. Layer 1 is absent from the sequence in the archaeolog- ical excavation itself (N. Greenbaum, pers. obs.). Contextual data for the layer are poor. The second fossil, EQH2, is an upper third molar (Fig. 3) from Layer 5a, in Area A. The fossil was found associated with flint artefacts and faunal remains in a horizon with refitted lithic items (51 refitted items in 21 aggregates) (SI 1), indicating a moderately disturbed in situ context. The best-preserved specimen is EQH3, consisting of five lower limb bones—a femur, two tibiae, and two fibulae (Fig. 4)—associated with an occupational horizon in stratigraphic Layer 3b, Area B (for details of the archaeological context, see SI 1). The femur and the left tibia of EQH3 were found articulated. The bones were aligned along the same axis, with the right tibia parallel to the left (Fig. 4A,B). One of the two fibulae (B1880) SCIENTIFIC REPORTS | 7: 2958 | DOI:10.1038/s41598-017-03025-z 2 www.nature.com/scientificreports/ Figure 2. Schematic plan of ‘Ein Qashish. (A) Compiled stratigraphic section with vertical locations of OSL dates, in thousands of years, and hominin fossils. (B) Plan of excavation areas with spatial locations of hominin fossils. Figure 3. 3D digital model of specimen EQH2, an upper right third molar. Left: Various views—B, buccal; L, lingual; M, mesial; D, distal; O, occlusal. The black bar represents 1 cm. Right: The enamel-dentine junction (EDJ) surface of EQH2. was discovered ca. 50 cm north of the femur-tibia cluster, and the other fibula (B12255), ca. 70 cm south of the cluster (Fig. 4A). Finds other than human remains in this particular horizon comprise fresh flint artefacts (with 21 refitted items from four aggregates); fragmented animal bones; limestone clasts, including potential manuports (possibly anvils); ochre; a roe deer antler and a seashell, Hexaplex trunculus (Linnaeus, 1758) (SI 1). OSL dating of sediments directly above and below EQH3 puts the fossil at 65 ± 8 ka (SI 2). EQH2. EQH2 is an upper right third molar (RM3) on which both the crown (with a mesiodistal [MD] length of 8.3 mm and buccolingual [BL] length of 9.7 mm) and the root (with a length of 14.3 mm) are preserved. The moderate wear of the tooth, with the dentine exposed on the paracone cusp, corresponds to wear stage (category) 3 of Molnar’s dental attrition classification30.
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